This Developer Note v Supplementary Documents v Conventions and Abbreviations vi Typographical Conventions vi Standard Abbreviations vi Macintosh PowerBook 145B 1 Features 2 Compatibility Issues 3 Modem Slot 3 RAM Expansion Slot 3 Identifiying the PowerBook 145B 3 About This Developer Note This document describes the Macintosh PowerBook 145B computer, emphasizing those features that are new or different from other Macintosh PowerBook computers. It is written primarily for experienced Macintosh hardware and software developers who want to create products that are compatible with these new computers.

If you are unfamiliar with Macintosh computers or would simply like more technical information, you may want to read the related technical manuals listed in the following section. Supplementary Documents 0 To supplement the information in this document, you might wish to obtain related documentation such as Guide to the Macintosh Family Hardware, second edition; Designing Cards and Drivers for the Macintosh Family, third edition; and Inside Macintosh. For detailed information about the Motorola 68030 microprocessor used in these computers, refer to the MC68030 Enhanced 32-Bit Microprocessor User s Manual.

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